1641147 has 8 divisors (see below), whose sum is σ = 2196480. Its totient is φ = 1089960.

The previous prime is 1641137. The next prime is 1641161. The reversal of 1641147 is 7411461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1641147 - 2⁴ = 1641131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1641137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54 + ... + 1812.

It is an arithmetic number, because the mean of its divisors is an integer number (274560).

2^1641147 is an apocalyptic number.

1641147 is a deficient number, since it is larger than the sum of its proper divisors (555333).

1641147 is a wasteful number, since it uses less digits than its factorization.

1641147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 672, while the sum is 24.

The square root of 1641147 is about 1281.0725974745. The cubic root of 1641147 is about 117.9548568101.

The spelling of 1641147 in words is "one million, six hundred forty-one thousand, one hundred forty-seven".